Home / 1,210,857.10-1,815,396.26-580,213.78

Finding the Fourth Proportional to 1,210,857.10, 1,815,396.26 and 580,213.78

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Solution

The fourth proportional to 1,210,857.10, 1,815,396.26 and 580,213.78 is: 869,894.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,857.10 : 1,815,396.26 = 580,213.78 : x
  2. Step 2: Convert to fraction form
    1,210,857.10/1,815,396.26 = 580,213.78/x
  3. Step 3: Cross multiply
    1,210,857.10x = 1,815,396.26 × 580,213.78
  4. Step 4: Simplify right side
    1,210,857.10x = 1,053,317,918,772.90
  5. Step 5: Solve for x
    x = 1,053,317,918,772.90/1,210,857.10
  6. Step 6: Final answer
    x = 869,894.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.